| HVAC Product Categories |

| Combustion Analyzers Testo Combustion Analyzers provide residential and commercial combustion analysis, including measuring CO levels, stack temperature and more.. |

| Digital Infrared Cameras FLIR digital infrared IR cameras for thermal detection. Applications include analyzing building heat loss and electrical or HVAC inspections. |
 | HVAC Kits Fieldpiece Instruments designs hand-held test instruments exclusively for HVAC/R technicians. Fieldpiece pioneered modular expandability, a concept where a single meter uses multiple slide-on accessory head instruments, to test most parameters HVAC/R technicians use every day. |

| Inspection Cameras / Boroscopes Extech VideoScope inspection cameras deliver high image resolution on large color display where images and videos can be stored on SD memory card. |

| Leak Detectors Gas leak detectors check for dangerous gas leaks before it's too late. |

| Refrigeration Analyzers Testo Refrigeration Analyzers perform accurate temperature, pressure, superheat and sub-cooling measurements on refrigerants. |